CVE-2026-93064 PUBLISHED

wifi: iwlwifi: mvm: fix off-by-one in TXF key sanitiser

Assigner: Linux
Reserved: 17.09.2026 Published: 17.09.2026 Updated: 17.09.2026

In the Linux kernel, the following vulnerability has been resolved:

wifi: iwlwifi: mvm: fix off-by-one in TXF key sanitiser

iwl_mvm_frob_txf_key_iter() tracks the last matched byte position in loop variable 'i'. When a full key match is found (match == keylen), 'i' points at the last byte of the matched key. The memset start offset should therefore be i + 1 - keylen, not i - keylen; the current code zeroes one byte before the match and leaves the final key byte un-sanitised.

Product Status

Vendor Linux
Product Linux
Versions Default: unaffected
  • affected from 12d60c1efc29e19f4dc0dc70cd48ce097fce6447 to 1af000d75b1c96f7cbdf23f14d0ee1c51b12f8e6 (excl.)
  • affected from 12d60c1efc29e19f4dc0dc70cd48ce097fce6447 to 5bcc933c6d47d795dab27458b9001c2d97130fd3 (excl.)
  • affected from 12d60c1efc29e19f4dc0dc70cd48ce097fce6447 to 4c582ed61325135f841ca93667d7551a8e31e58d (excl.)
  • affected from 12d60c1efc29e19f4dc0dc70cd48ce097fce6447 to c9d8641aea01c3b2516483e128e1f557cfbcf44a (excl.)
  • affected from 12d60c1efc29e19f4dc0dc70cd48ce097fce6447 to 2a77cb320e3998afa5e1ed0e95908b226aae9ed6 (excl.)
  • affected from 12d60c1efc29e19f4dc0dc70cd48ce097fce6447 to f6a6c01cbc046f68e6916a7e047a1bc881c8c9ab (excl.)
Vendor Linux
Product Linux
Versions Default: affected
  • Version 5.16 is affected
  • unaffected from 0 to 5.16 (excl.)
  • unaffected from 6.1.188 to 6.1.* (incl.)
  • unaffected from 6.6.157 to 6.6.* (incl.)
  • unaffected from 6.12.110 to 6.12.* (incl.)
  • unaffected from 6.18.52 to 6.18.* (incl.)
  • unaffected from 7.2.6 to 7.2.* (incl.)
  • unaffected from 7.3-rc1 to * (incl.)

References